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-rw-r--r--src/gallium/drivers/cell/spu/spu_main.c567
1 files changed, 567 insertions, 0 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_main.c b/src/gallium/drivers/cell/spu/spu_main.c
new file mode 100644
index 0000000000..e375197fe6
--- /dev/null
+++ b/src/gallium/drivers/cell/spu/spu_main.c
@@ -0,0 +1,567 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+/* main() for Cell SPU code */
+
+
+#include <stdio.h>
+#include <libmisc.h>
+
+#include "spu_main.h"
+#include "spu_render.h"
+#include "spu_texture.h"
+#include "spu_tile.h"
+//#include "spu_test.h"
+#include "spu_vertex_shader.h"
+#include "pipe/cell/common.h"
+#include "pipe/p_defines.h"
+
+
+/*
+helpful headers:
+/usr/lib/gcc/spu/4.1.1/include/spu_mfcio.h
+/opt/ibm/cell-sdk/prototype/sysroot/usr/include/libmisc.h
+*/
+
+boolean Debug = FALSE;
+
+struct spu_global spu;
+
+struct spu_vs_context draw;
+
+/**
+ * Tell the PPU that this SPU has finished copying a buffer to
+ * local store and that it may be reused by the PPU.
+ * This is done by writting a 16-byte batch-buffer-status block back into
+ * main memory (in cell_context->buffer_status[]).
+ */
+static void
+release_buffer(uint buffer)
+{
+ /* Evidently, using less than a 16-byte status doesn't work reliably */
+ static const uint status[4] ALIGN16_ATTRIB
+ = {CELL_BUFFER_STATUS_FREE, 0, 0, 0};
+
+ const uint index = 4 * (spu.init.id * CELL_NUM_BUFFERS + buffer);
+ uint *dst = spu.init.buffer_status + index;
+
+ ASSERT(buffer < CELL_NUM_BUFFERS);
+
+ mfc_put((void *) &status, /* src in local memory */
+ (unsigned int) dst, /* dst in main memory */
+ sizeof(status), /* size */
+ TAG_MISC, /* tag is unimportant */
+ 0, /* tid */
+ 0 /* rid */);
+}
+
+
+/**
+ * For tiles whose status is TILE_STATUS_CLEAR, write solid-filled
+ * tiles back to the main framebuffer.
+ */
+static void
+really_clear_tiles(uint surfaceIndex)
+{
+ const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles;
+ uint i;
+
+ if (surfaceIndex == 0) {
+ clear_c_tile(&spu.ctile);
+
+ for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) {
+ uint tx = i % spu.fb.width_tiles;
+ uint ty = i / spu.fb.width_tiles;
+ if (spu.ctile_status[ty][tx] == TILE_STATUS_CLEAR) {
+ put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 0);
+ }
+ }
+ }
+ else {
+ clear_z_tile(&spu.ztile);
+
+ for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) {
+ uint tx = i % spu.fb.width_tiles;
+ uint ty = i / spu.fb.width_tiles;
+ if (spu.ztile_status[ty][tx] == TILE_STATUS_CLEAR)
+ put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 1);
+ }
+ }
+
+#if 0
+ wait_on_mask(1 << TAG_SURFACE_CLEAR);
+#endif
+}
+
+
+static void
+cmd_clear_surface(const struct cell_command_clear_surface *clear)
+{
+ const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles;
+ uint i;
+
+ if (Debug)
+ printf("SPU %u: CLEAR SURF %u to 0x%08x\n", spu.init.id,
+ clear->surface, clear->value);
+
+#define CLEAR_OPT 1
+#if CLEAR_OPT
+ /* set all tile's status to CLEAR */
+ if (clear->surface == 0) {
+ memset(spu.ctile_status, TILE_STATUS_CLEAR, sizeof(spu.ctile_status));
+ spu.fb.color_clear_value = clear->value;
+ }
+ else {
+ memset(spu.ztile_status, TILE_STATUS_CLEAR, sizeof(spu.ztile_status));
+ spu.fb.depth_clear_value = clear->value;
+ }
+ return;
+#endif
+
+ if (clear->surface == 0) {
+ spu.fb.color_clear_value = clear->value;
+ clear_c_tile(&spu.ctile);
+ }
+ else {
+ spu.fb.depth_clear_value = clear->value;
+ clear_z_tile(&spu.ztile);
+ }
+
+ /*
+ printf("SPU: %s num=%d w=%d h=%d\n",
+ __FUNCTION__, num_tiles, spu.fb.width_tiles, spu.fb.height_tiles);
+ */
+
+ for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) {
+ uint tx = i % spu.fb.width_tiles;
+ uint ty = i / spu.fb.width_tiles;
+ if (clear->surface == 0)
+ put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 0);
+ else
+ put_tile(tx, ty, &spu.ztile, TAG_SURFACE_CLEAR, 1);
+ /* XXX we don't want this here, but it fixes bad tile results */
+ }
+
+#if 0
+ wait_on_mask(1 << TAG_SURFACE_CLEAR);
+#endif
+
+ if (Debug)
+ printf("SPU %u: CLEAR SURF done\n", spu.init.id);
+}
+
+
+static void
+cmd_release_verts(const struct cell_command_release_verts *release)
+{
+ if (Debug)
+ printf("SPU %u: RELEASE VERTS %u\n",
+ spu.init.id, release->vertex_buf);
+ ASSERT(release->vertex_buf != ~0U);
+ release_buffer(release->vertex_buf);
+}
+
+
+static void
+cmd_state_framebuffer(const struct cell_command_framebuffer *cmd)
+{
+ if (Debug)
+ printf("SPU %u: FRAMEBUFFER: %d x %d at %p, cformat 0x%x zformat 0x%x\n",
+ spu.init.id,
+ cmd->width,
+ cmd->height,
+ cmd->color_start,
+ cmd->color_format,
+ cmd->depth_format);
+
+ ASSERT_ALIGN16(cmd->color_start);
+ ASSERT_ALIGN16(cmd->depth_start);
+
+ spu.fb.color_start = cmd->color_start;
+ spu.fb.depth_start = cmd->depth_start;
+ spu.fb.color_format = cmd->color_format;
+ spu.fb.depth_format = cmd->depth_format;
+ spu.fb.width = cmd->width;
+ spu.fb.height = cmd->height;
+ spu.fb.width_tiles = (spu.fb.width + TILE_SIZE - 1) / TILE_SIZE;
+ spu.fb.height_tiles = (spu.fb.height + TILE_SIZE - 1) / TILE_SIZE;
+
+ if (spu.fb.depth_format == PIPE_FORMAT_Z32_UNORM)
+ spu.fb.zsize = 4;
+ else if (spu.fb.depth_format == PIPE_FORMAT_Z16_UNORM)
+ spu.fb.zsize = 2;
+ else
+ spu.fb.zsize = 0;
+
+ if (spu.fb.color_format == PIPE_FORMAT_A8R8G8B8_UNORM)
+ spu.color_shuffle = ((vector unsigned char) {
+ 12, 0, 4, 8, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0});
+ else if (spu.fb.color_format == PIPE_FORMAT_B8G8R8A8_UNORM)
+ spu.color_shuffle = ((vector unsigned char) {
+ 8, 4, 0, 12, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0});
+ else
+ ASSERT(0);
+}
+
+
+static void
+cmd_state_blend(const struct pipe_blend_state *state)
+{
+ if (Debug)
+ printf("SPU %u: BLEND: enabled %d\n",
+ spu.init.id,
+ state->blend_enable);
+
+ memcpy(&spu.blend, state, sizeof(*state));
+}
+
+
+static void
+cmd_state_depth_stencil(const struct pipe_depth_stencil_alpha_state *state)
+{
+ if (Debug)
+ printf("SPU %u: DEPTH_STENCIL: ztest %d\n",
+ spu.init.id,
+ state->depth.enabled);
+
+ memcpy(&spu.depth_stencil, state, sizeof(*state));
+}
+
+
+static void
+cmd_state_sampler(const struct pipe_sampler_state *state)
+{
+ if (Debug)
+ printf("SPU %u: SAMPLER\n",
+ spu.init.id);
+
+ memcpy(&spu.sampler[0], state, sizeof(*state));
+ if (spu.sampler[0].min_img_filter == PIPE_TEX_FILTER_LINEAR)
+ spu.sample_texture = sample_texture_bilinear;
+ else
+ spu.sample_texture = sample_texture_nearest;
+}
+
+
+static void
+cmd_state_texture(const struct cell_command_texture *texture)
+{
+ if (Debug)
+ printf("SPU %u: TEXTURE at %p size %u x %u\n",
+ spu.init.id, texture->start, texture->width, texture->height);
+
+ memcpy(&spu.texture, texture, sizeof(*texture));
+ spu.tex_size = (vector float)
+ { spu.texture.width, spu.texture.height, 0.0, 0.0};
+ spu.tex_size_mask = (vector unsigned int)
+ { spu.texture.width - 1, spu.texture.height - 1, 0, 0 };
+}
+
+
+static void
+cmd_state_vertex_info(const struct vertex_info *vinfo)
+{
+ if (Debug) {
+ printf("SPU %u: VERTEX_INFO num_attribs=%u\n", spu.init.id,
+ vinfo->num_attribs);
+ }
+ ASSERT(vinfo->num_attribs >= 1);
+ ASSERT(vinfo->num_attribs <= 8);
+ memcpy(&spu.vertex_info, vinfo, sizeof(*vinfo));
+}
+
+
+static void
+cmd_state_vs_array_info(const struct cell_array_info *vs_info)
+{
+ const unsigned attr = vs_info->attr;
+
+ ASSERT(attr < PIPE_ATTRIB_MAX);
+ draw.vertex_fetch.src_ptr[attr] = vs_info->base;
+ draw.vertex_fetch.pitch[attr] = vs_info->pitch;
+ draw.vertex_fetch.format[attr] = vs_info->format;
+ draw.vertex_fetch.dirty = 1;
+}
+
+
+static void
+cmd_finish(void)
+{
+ if (Debug)
+ printf("SPU %u: FINISH\n", spu.init.id);
+ really_clear_tiles(0);
+ /* wait for all outstanding DMAs to finish */
+ mfc_write_tag_mask(~0);
+ mfc_read_tag_status_all();
+ /* send mbox message to PPU */
+ spu_write_out_mbox(CELL_CMD_FINISH);
+}
+
+
+/**
+ * Execute a batch of commands
+ * The opcode param encodes the location of the buffer and its size.
+ */
+static void
+cmd_batch(uint opcode)
+{
+ const uint buf = (opcode >> 8) & 0xff;
+ uint size = (opcode >> 16);
+ uint64_t buffer[CELL_BUFFER_SIZE / 8] ALIGN16_ATTRIB;
+ const unsigned usize = size / sizeof(buffer[0]);
+ uint pos;
+
+ if (Debug)
+ printf("SPU %u: BATCH buffer %u, len %u, from %p\n",
+ spu.init.id, buf, size, spu.init.buffers[buf]);
+
+ ASSERT((opcode & CELL_CMD_OPCODE_MASK) == CELL_CMD_BATCH);
+
+ ASSERT_ALIGN16(spu.init.buffers[buf]);
+
+ size = ROUNDUP16(size);
+
+ ASSERT_ALIGN16(spu.init.buffers[buf]);
+
+ mfc_get(buffer, /* dest */
+ (unsigned int) spu.init.buffers[buf], /* src */
+ size,
+ TAG_BATCH_BUFFER,
+ 0, /* tid */
+ 0 /* rid */);
+ wait_on_mask(1 << TAG_BATCH_BUFFER);
+
+ /* Tell PPU we're done copying the buffer to local store */
+ if (Debug)
+ printf("SPU %u: release batch buf %u\n", spu.init.id, buf);
+ release_buffer(buf);
+
+ for (pos = 0; pos < usize; /* no incr */) {
+ switch (buffer[pos]) {
+ case CELL_CMD_STATE_FRAMEBUFFER:
+ {
+ struct cell_command_framebuffer *fb
+ = (struct cell_command_framebuffer *) &buffer[pos];
+ cmd_state_framebuffer(fb);
+ pos += sizeof(*fb) / 8;
+ }
+ break;
+ case CELL_CMD_CLEAR_SURFACE:
+ {
+ struct cell_command_clear_surface *clr
+ = (struct cell_command_clear_surface *) &buffer[pos];
+ cmd_clear_surface(clr);
+ pos += sizeof(*clr) / 8;
+ }
+ break;
+ case CELL_CMD_RENDER:
+ {
+ struct cell_command_render *render
+ = (struct cell_command_render *) &buffer[pos];
+ uint pos_incr;
+ cmd_render(render, &pos_incr);
+ pos += pos_incr;
+ }
+ break;
+ case CELL_CMD_RELEASE_VERTS:
+ {
+ struct cell_command_release_verts *release
+ = (struct cell_command_release_verts *) &buffer[pos];
+ cmd_release_verts(release);
+ pos += sizeof(*release) / 8;
+ }
+ break;
+ case CELL_CMD_FINISH:
+ cmd_finish();
+ pos += 1;
+ break;
+ case CELL_CMD_STATE_BLEND:
+ cmd_state_blend((struct pipe_blend_state *)
+ &buffer[pos+1]);
+ pos += (1 + ROUNDUP8(sizeof(struct pipe_blend_state)) / 8);
+ break;
+ case CELL_CMD_STATE_DEPTH_STENCIL:
+ cmd_state_depth_stencil((struct pipe_depth_stencil_alpha_state *)
+ &buffer[pos+1]);
+ pos += (1 + ROUNDUP8(sizeof(struct pipe_depth_stencil_alpha_state)) / 8);
+ break;
+ case CELL_CMD_STATE_SAMPLER:
+ cmd_state_sampler((struct pipe_sampler_state *) &buffer[pos+1]);
+ pos += (1 + ROUNDUP8(sizeof(struct pipe_sampler_state)) / 8);
+ break;
+ case CELL_CMD_STATE_TEXTURE:
+ cmd_state_texture((struct cell_command_texture *) &buffer[pos+1]);
+ pos += (1 + ROUNDUP8(sizeof(struct cell_command_texture)) / 8);
+ break;
+ case CELL_CMD_STATE_VERTEX_INFO:
+ cmd_state_vertex_info((struct vertex_info *) &buffer[pos+1]);
+ pos += (1 + ROUNDUP8(sizeof(struct vertex_info)) / 8);
+ break;
+ case CELL_CMD_STATE_VIEWPORT:
+ (void) memcpy(& draw.viewport, &buffer[pos+1],
+ sizeof(struct pipe_viewport_state));
+ pos += (1 + ROUNDUP8(sizeof(struct pipe_viewport_state)) / 8);
+ break;
+ case CELL_CMD_STATE_VS_ARRAY_INFO:
+ cmd_state_vs_array_info((struct cell_array_info *) &buffer[pos+1]);
+ pos += (1 + ROUNDUP8(sizeof(struct cell_array_info)) / 8);
+ break;
+ default:
+ printf("SPU %u: bad opcode: 0x%llx\n", spu.init.id, buffer[pos]);
+ ASSERT(0);
+ break;
+ }
+ }
+
+ if (Debug)
+ printf("SPU %u: BATCH complete\n", spu.init.id);
+}
+
+
+/**
+ * Temporary/simple main loop for SPEs: Get a command, execute it, repeat.
+ */
+static void
+main_loop(void)
+{
+ struct cell_command cmd;
+ int exitFlag = 0;
+
+ if (Debug)
+ printf("SPU %u: Enter main loop\n", spu.init.id);
+
+ ASSERT((sizeof(struct cell_command) & 0xf) == 0);
+ ASSERT_ALIGN16(&cmd);
+
+ while (!exitFlag) {
+ unsigned opcode;
+ int tag = 0;
+
+ if (Debug)
+ printf("SPU %u: Wait for cmd...\n", spu.init.id);
+
+ /* read/wait from mailbox */
+ opcode = (unsigned int) spu_read_in_mbox();
+
+ if (Debug)
+ printf("SPU %u: got cmd 0x%x\n", spu.init.id, opcode);
+
+ /* command payload */
+ mfc_get(&cmd, /* dest */
+ (unsigned int) spu.init.cmd, /* src */
+ sizeof(struct cell_command), /* bytes */
+ tag,
+ 0, /* tid */
+ 0 /* rid */);
+ wait_on_mask( 1 << tag );
+
+ /*
+ * NOTE: most commands should be contained in a batch buffer
+ */
+
+ switch (opcode & CELL_CMD_OPCODE_MASK) {
+ case CELL_CMD_EXIT:
+ if (Debug)
+ printf("SPU %u: EXIT\n", spu.init.id);
+ exitFlag = 1;
+ break;
+ case CELL_CMD_VS_EXECUTE:
+ spu_execute_vertex_shader(&draw, &cmd.vs);
+ break;
+ case CELL_CMD_BATCH:
+ cmd_batch(opcode);
+ break;
+ default:
+ printf("Bad opcode!\n");
+ }
+
+ }
+
+ if (Debug)
+ printf("SPU %u: Exit main loop\n", spu.init.id);
+}
+
+
+
+static void
+one_time_init(void)
+{
+ memset(spu.ctile_status, TILE_STATUS_DEFINED, sizeof(spu.ctile_status));
+ memset(spu.ztile_status, TILE_STATUS_DEFINED, sizeof(spu.ztile_status));
+ invalidate_tex_cache();
+}
+
+
+
+/* In some versions of the SDK the SPE main takes 'unsigned long' as a
+ * parameter. In others it takes 'unsigned long long'. Use a define to
+ * select between the two.
+ */
+#ifdef SPU_MAIN_PARAM_LONG_LONG
+typedef unsigned long long main_param_t;
+#else
+typedef unsigned long main_param_t;
+#endif
+
+/**
+ * SPE entrypoint.
+ */
+int
+main(main_param_t speid, main_param_t argp)
+{
+ int tag = 0;
+
+ (void) speid;
+
+ ASSERT(sizeof(tile_t) == TILE_SIZE * TILE_SIZE * 4);
+ ASSERT(sizeof(struct cell_command_render) % 8 == 0);
+
+ one_time_init();
+
+ if (Debug)
+ printf("SPU: main() speid=%lu\n", speid);
+
+ mfc_get(&spu.init, /* dest */
+ (unsigned int) argp, /* src */
+ sizeof(struct cell_init_info), /* bytes */
+ tag,
+ 0, /* tid */
+ 0 /* rid */);
+ wait_on_mask( 1 << tag );
+
+#if 0
+ if (spu.init.id==0)
+ spu_test_misc();
+#endif
+
+ main_loop();
+
+ return 0;
+}
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